Epub阅读器0.0.1

2026-05-21 19:40:51 +08:00
commit daa36d8fe7
559 changed files with 106266 additions and 0 deletions
@@ -0,0 +1,86 @@
+import UIKit
+import WebKit
+
+extension RDEPUBWebView {
+    public func loadFixedSpread(
+        parser: RDEPUBParser,
+        spread: EPUBFixedSpread,
+        viewportSize: CGSize,
+        contentInset: UIEdgeInsets,
+        backgroundColor: UIColor?
+    ) {
+        let request = RDEPUBRenderRequest.fixed(
+            RDEPUBFixedRenderRequest(
+                spread: spread,
+                viewportSize: viewportSize,
+                contentInset: contentInset,
+                backgroundColorCSS: backgroundColor?.ss_hexString,
+                fit: .page,
+                searchPresentation: nil
+            )
+        )
+        load(publication: parser.makePublication(), request: request)
+    }
+
+    func handleFixedLayoutLoad(
+        publication: RDEPUBPublication,
+        request: RDEPUBFixedRenderRequest,
+        loadSignature: String,
+        in webView: WKWebView
+    ) {
+        currentPageIndex = 0
+        currentTotalPagesInChapter = 1
+        viewportSize = request.viewportSize
+        currentPadding = request.contentInset
+        currentFontSize = 16
+        currentLineHeightMultiple = 1.5
+        currentThemeBackgroundColor = request.backgroundColorCSS
+        currentThemeTextColor = nil
+        targetLocation = nil
+        pendingHighlights = []
+        fixedSpread = request.spread
+        isFixedLayout = true
+        pendingProgressionRequest = false
+        currentLoadSignature = loadSignature
+        scheduleFixedLayoutReadyFallback()
+
+        let html = RDEPUBFixedLayoutTemplate.html(for: request, publication: publication)
+        RDEPUBWebViewDebug.log(debugScope, message: "load fixed spread resources=\(request.spread.resources.map(\.href).joined(separator: ",")) fit=\(request.fit.rawValue)")
+        webView.loadHTMLString(
+            html,
+            baseURL: URL(string: "\(RDEPUBResourceURLSchemeHandler.scheme)://\(RDEPUBResourceURLSchemeHandler.host)/")
+        )
+    }
+
+    func fixedLayoutLoadSignature(publicationKey: String, request: RDEPUBFixedRenderRequest) -> String {
+        [
+            publicationKey,
+            "fixed",
+            request.spread.resources.map(\.href).joined(separator: "|"),
+            String(format: "%.2f", request.viewportSize.width),
+            String(format: "%.2f", request.viewportSize.height),
+            String(format: "%.2f", request.contentInset.top),
+            String(format: "%.2f", request.contentInset.left),
+            String(format: "%.2f", request.contentInset.bottom),
+            String(format: "%.2f", request.contentInset.right),
+            request.backgroundColorCSS ?? "",
+            request.fit.rawValue
+        ].joined(separator: "#")
+    }
+
+    func scheduleFixedLayoutReadyFallback() {
+        let workItem = DispatchWorkItem { [weak self] in
+            RDEPUBWebViewDebug.log(self?.debugScope ?? "ReaderWebView", message: "fixed ready fallback fired")
+            self?.applySearchDecorationsIfNeeded {
+                self?.rendered()
+            }
+        }
+        fixedLayoutReadyWorkItem = workItem
+        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0, execute: workItem)
+    }
+
+    func cancelFixedLayoutReadyFallback() {
+        fixedLayoutReadyWorkItem?.cancel()
+        fixedLayoutReadyWorkItem = nil
+    }
+}